BF-170M Split Pressurized Solar Water Heating System Controller

BF-170M is a full-featured hot-water system controller in which one main unit controls the entire system. Two control panels (wired remote controllers) can be connected in series at the user end for remote adjustment of the main unit.

The product integrates two function groups: heating control (timed auxiliary heating, heat-collection circulation, and manual heating) and return-water control (timed and manual return water), covering various hot-water system control requirements. Parameter settings allow the user to select cold-water supply to the collector panel or to the water tank.

BF-170M is especially suitable for centralized hot-water control in villas, resort hotels, guesthouses, and similar facilities, meeting high-volume water-heating demands with stable, outstanding performance.

Get a quick overview of product features and applications

BF-170M supports 1–4 additional wired remote controllers installed in different locations as needed. Four remote controllers are connected in series using HX2.54-3P data communication cables and then connected to the main unit, creating a more convenient control system.

• Three 10K NTC thermistor temperature inputs:

• T1. Water tank temperature sensor input:

• T2. Heat collector plate temperature sensor input;

• T3. Pipe insulation temperature sensor input;

• Output

• ◆ Electric heating output, load power AC220V, 3KW;

• ◆ Differential temperature circulation pump output, rated load: AC220V, 200W;

• ◆ Pipeline circulation pump (or water pressure booster pump) output, load rating AC220V, 200W;

• ◆ Water supply booster pump output, rated load: AC220V, 200W

• Timing Clock

• 24-hour clock

• Timing range

• 00:00 - 23:59 (hours: minutes)

• Measurement range

• Temperature range: -19 to 99°C

• Set Range

• Heating temperature setting: 0 ~ 85 ℃

• Control Range

• Heating temperature control range: 0 ~ 85 ℃

• Other Parameters

• The temperature sensor cable can be extended up to 100 m using ordinary wire

• Setting parameters Power down Long-term memory retention

• Temperature control Water temperature control range: 10 ~ 80 ℃

• Temperature difference control range of the heat collecting plate: 4 ~ 30 ℃

• Tank temperature range for stopping differential-temperature circulation: 55～99℃

• Temperature control range: 20 ~ 50 ℃

• Antifreeze cycle temperature control range: -10 ~ 10 ℃